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DbExpressionBuilder.AggregateDistinct(EdmFunction, DbExpression) Method

Definition

Creates a new DbFunctionAggregate that is applied in a distinct fashion.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Data::Common::CommandTrees::DbFunctionAggregate ^ AggregateDistinct(System::Data::Metadata::Edm::EdmFunction ^ function, System::Data::Common::CommandTrees::DbExpression ^ argument);
public static System.Data.Common.CommandTrees.DbFunctionAggregate AggregateDistinct (this System.Data.Metadata.Edm.EdmFunction function, System.Data.Common.CommandTrees.DbExpression argument);
static member AggregateDistinct : System.Data.Metadata.Edm.EdmFunction * System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionAggregate
<Extension()>
Public Function AggregateDistinct (function As EdmFunction, argument As DbExpression) As DbFunctionAggregate

Parameters

function
EdmFunction

The function that defines the aggregate operation.

argument
DbExpression

The argument over which the aggregate function should be calculated.

Returns

A new function aggregate with a reference to the given function and argument. The function aggregate's Distinct property will have the value true.

Exceptions

function or argument is null.

function is not an aggregate function or has more than one argument, or the result type of argument is not equal or promotable to the parameter type of function.

Applies to